Tappet Inspection; Cylinder Block Inspection - Mazda 2006-2008 RX7 Engine Workshop Manual

TAPPET INSPECTION

1. Measure the tappet hole inner diameter in X and
Y directions at the two points (A and B) shown in
the figure.
Tappet bore diameter (Standard)
31.000—31.030 mm {1.2205—1.2216 in}
2. Measure the tappet body outer diameter in X and
Y directions at the two points (A and B) shown in
the figure.
Tappet diameter (Standard)
30.970—30.980 mm {1.2193—1.2196 in}
3. Subtract the tappet body outer diameter from the
tappet hole inner diameter.
• If it exceeds the specification, replace the
tappet or cylinder head.
Tappet-to-Tappet bore oil clearance (Standard)
0.02—0.06 mm {0.0008—0.0023 in}
Tappet-to-Tappet bore oil clearance (Maximum)
0.15 mm {0.006 in}
End Of Sie

CYLINDER BLOCK INSPECTION

1. Measure the distortion of the cylinder block top
surface in six directions as indicated in the figure.
• If it exceeds the maximum, replace the
cylinder block.
Cylinder head gasket contact surfaces
distortion (Maximum)
0.10 mm {0.004 in}
2. Measure the cylinder bores in X and Y directions
at 42 mm {1.65 in} below the top surface.
• If not within the specification, replace the
cylinder block.
Cylinder bore diameter (Standard)
87.500—87.530 mm {3.4449—3.4460 in}
Minimum / maximum bore diameter limit
87.440—87.590 mm {3.4425—3.4484 in}
End Of Sie
MECHANICAL
Y
A
B
Y
X
X
A
B
X
Y
42 mm {1.65 in}
01–10–17
E5U011012431E01
01–10
ADJ2224E023
ADJ2224E029
E5U011010300E01
ADJ2224E089
C3U0110E007